Expansible collapsible element



- 1,624,348 H. C. MALLORY EXPANSIBLE 'COLLAPSIBLE: ELEMENT April 12, 1921.

Original Filed June '7, 1916 hI/INV NTOR M. z W ATTORNEY Patented Apr. 12, 19 27.

UNITED; STAT-ES 1,624,348 PATENT OFFICE.

HARRY C. MALLORY, DECEASED, LATE F BELLPORT, NEW YORK; BY SUE-B. MALLORY,

Anmmsrm'raix, or BELLPORT, NEW YORK. nxraiwsrann conLArsrBLn ELEMENT.

Original application filed June 7, 1916,

The invention relates to elastic elements,

and the same has for its object more particularly to provide an elastic metallic element for use in connection with apparatns or devices subject to or influenced by tem- .perature or pressure variations, whereby to operate a valve, apparatusor other mechanism. v Further, said invention has for its object to rovide an expansible-collapsible element 'inte a1 therewith, an imperforate or closed en portion therefor reinforced upon its inner and outer sides whereby to give *greater strength and rigidity theretoand to permit said' closed end to more efficiently cooperate with other parts, mechanisms or devices adapted to be operated or controlled by said element;

Further, said invention has for its' object to '20 provide a corrugated expansible-collapsible element for the purposes specified, and, integral therewith, an imperforate or closed end portion therefor reinforced upon its nner and outer sides by a pair of separate reinforcing members permanently secured thereto, of

which, the outer of said members serves as a valve or other member adapted to coact with other parts, mechanisms or .devices to be operated or controlled by said element.

Other objectswill in part-be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends the invention consists in the novel details of construction, and in'the combina- 36 tion, connection and arrangement of parts lic element 10 is of the bellows type, i. e.

comprises an intermediate portion with a series of circumferential corrugations 10 therein and has an open end 11 and a closed means of a tubular member 15 extendng into the hollow element 10 and provided with'an expanded portion 16 compressing the wall of said open end 11 into the groove 13 to securely hold the same in position 'therein. A perforated metal cap 17 is placed over the member 15 to prevent dirt from entering into the same and to permit free circulation of air therein. a

The closed .or imperforate end 12 of the element 10 is reinforced upon its innerside by. a flat metal disk or member 18 disposed therein, and secured by crimping or rolling the adjacentlportion 19 of the wall of the element 10 over and around the edge of the same. The outer side of the end 12 of element 10 1s separatelyreinforced by a onep'iece mem ber 20 having a stem 20."int egral therewith and projecting centrally therefrom-.- The reinforcing member 20 has a recess 21 in the upper face thereof formed by a rimvor flange 22 integral with member 20. The interiorly reinforced end 12 of the element 10 is fitted within recess 21 of the member 20 and the flange 22 is 'crimped or rolled upwardly "and inwardly around and over the disk 18 and the retaining portion 19 therefor,-whereby the member 20 is firmly secured'to the end 12, the latter being reinforced and clamped between member 20 and member 18.

The stem 20 is illustrated as having at the end thereof a valve member '23 (which may be separately attached thereto, if desired) adapted to close and open an opening 24 in the valve body or casing 25 to control the device when the element 10 expands and contracts.

The valve body 25 is connected to a radi- -ator by means of a union nut 26 and has a.

threaded connection 27 to an escape or return pipe.

The operation of thermostatic steam traps of the type described is well known an such operation need not be further elaborated.

In producing an expansible-collapsible element embodying the present invention, there is first formed the shell 10 having the HEISSUED Serial 110. 192,115. Divided and this application filed J'annary 30, i

1924. Serial No. 689,401. g

, side of said end and peripheral means ex-- closed end 12. The metal disk 18 is positioned therein and the portion 19 rolled or formed to retain the disk 18 in place. The shell 10 is then subjectedto the action of suitable dies, whereby to circumferentially corrugate its intermediate or body portion to form the series of corrugations or folds 1O therein.

Hereupon the outer reinforcing member 20 is seated or fitted upon the closed inte' riorly reinforced end 12 and the flange 22 thereof crimped, pressed or rolled firmly into engagement with the outer side of the retaining portion 19 for the disk 18 to reinforce said portion 19 and to provide a secure connection of member 20 thereto,

The member 18 disposed within the closed end 12 of the shell 10 and the member 20 secured to said closed end upon the outside thereof jointly serve to iuteriorly and exteriorly reinforce said closed end.

This application is a division of an application Serial No. 102,115, filed by Harry 1 C. Mallory on June 7, 1916, the latter application in turn being a continuation in part of an application, Serial No. 833,593, filed by him April 22, 1914-, renewed December 5, 1919, Serial No. 342,802 and patented January 25, 1921, No. 1,366,473.

Having thus described said invention, What is claimed and desired to secure by Letters Patent is:

1. An expansible-collapsible element comprising a shell having a circumferentially corrugated body portion, a closed end, a member disposed within said end to reinforce the same and engaged at the edge thereof by a portion of said shell, and a one piece reinforcing member including an intermediate portion engaging the outer tending over the portion of said shell en gaging the edge of said inner member to secure said outer member to said end, substantially as specified.

2. An expansible-collapsible element comprising a shell having a circumferentially corrugated body portion, a closed end, a

member disposed within said end to reinforce the same andengaged at the edge thereof by a portion of said shell, and a one piece reinforcing member including an intermediate portion engaging the outer side of said end, peripheral means extending over the portion of said shell engaging the edge of said inner member to secure said end, a peripheral flange extending over and' aroundsaid disk retaining portion of said shell to reinforce the same and to seizure said member to said end, and a stem integral with said intermediate portion and n'ojecting therefrom, substantially as specified.

4. An expansihie-collapsible element comprising a shell having a circumferentially corrugated body portion, a closed end, a reinforcing disk disposed within said end and retained therein against the wall thereof by a portion of said shell extending over and around the edge of said disk, a one piece reinforcing member including an intermediate portion engaging the outer sidc ot said end, a peripheral flange extending over and around said disk retaining portion of said shell to reinforce the same and to secure said member to said end, and a stem integral with said intermediate portion and projecting centrally tlurretrom, and a valve member at the end of: said stem, substantially as specified.

Signed at Bellport, in the county of Suffolk, and State of New York, this 28th day of Jan, one thousand nine hundred and twenty-four.

SUE R. MALLORY, Administmtriw of the Estate of Ham; 0,

Mallory. 

